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United States Patent | 5,112,618 |
Cartmell ,   et al. | May 12, 1992 |
A wound dressing product is described which includes a flexible backing member that can be vacuum formed to include a depression. A pressure-sensitive adhesive layer extends across the depression side of the flexible backing member. A hydrogel material is positioned in the depression of the flexible backing member and a release liner extends over the exposed pressure-sensitive adhesive layer and the exposed hydrogel material, which release liner has a selective releasability whereby it can be removed from the wound dressing product intact, leaving a portion of the pressure-sensitive adhesive and the hydrogel material exposed.
Inventors: | Cartmell; James V. (Centerville, OH); Sturtevant; Wayne R. (Centerville, OH); Valadez; Manuel (Castaic, CA); Wolf; Michael L. (West Milton, OH) |
Assignee: | NDM Acquisition Corp. (Minneapolis, MN) |
Appl. No.: | 712342 |
Filed: | June 7, 1991 |
Current U.S. Class: | 424/443; 424/448; 424/449; 514/772 |
Intern'l Class: | A61F 013/00 |
Field of Search: | 524/52 424/443,448,449 514/772 522/86 |
4478853 | Oct., 1984 | Chaussee | 514/772. |
4668564 | May., 1987 | Orchard | 424/443. |
4699146 | Oct., 1987 | Sieverding | 522/86. |
4920158 | Apr., 1990 | Murray | 524/52. |
5013769 | May., 1991 | Murray | 524/52. |
Foreign Patent Documents | |||
0184233 | Jun., 1986 | EP. | |
2102012 | Jul., 1981 | GB. |